10 most popular tech stories of September

Solar cell hits new world record with 44.7 percent efficiency "It took three years of research on this particular solar technology to hit the new world record of 44.7 percent, an efficiency that is getting the world of solar tech tantalizingly close to 50 percent." This little patch acts like an invisibility cloak to mosquitoes "[T]he development of a novel form of mosquito repellent could make it much safer for humans in those areas, because the non-toxic compounds in it can effectively block mosquitoes’ ability to track humans for up to 48 hours, rendering the wearer virtually invisible to mosquitoes." $15 micro lens turns your smartphone into a microscope "[T]hanks to the work of Thomas Larson, a recent mechanical engineering graduate, taking microscopic pictures and videos can soon be as simple as applying a tiny micro lens to the camera on your mobile phone and clicki...